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Finding the Fourth Proportional to 109,806.72, 151,532.64 and 59,504.64

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Solution

The fourth proportional to 109,806.72, 151,532.64 and 59,504.64 is: 82,116.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,806.72 : 151,532.64 = 59,504.64 : x
  2. Step 2: Convert to fraction form
    109,806.72/151,532.64 = 59,504.64/x
  3. Step 3: Cross multiply
    109,806.72x = 151,532.64 × 59,504.64
  4. Step 4: Simplify right side
    109,806.72x = 9,016,895,191.45
  5. Step 5: Solve for x
    x = 9,016,895,191.45/109,806.72
  6. Step 6: Final answer
    x = 82,116.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.